Figure 7. Charge storage performance and electrolyte properties. (A) Charge storage obtained from CVs at a range of scan rates vs. LiBr electrolyte concentration curves, (B) electrolyte conductivity and dynamic viscosity vs. LiBr electrolyte concentration curves, and (C) Walden plot of the LiBr electrolytes at the range of concentration considered in this study (indicated with labels). In (B), the following standard deviations apply to dynamic viscosity values: (5 m) $$ \pm $$ 3.15E-01, (7.5 m) $$ \pm $$ 1.68E-01, (10 m) $$ \pm $$ 1.37E-01, (12.5 m) $$ \pm $$ 4.04E-01, (15 m) $$ \pm $$ 7.94E-02, (17.5 m) $$ \pm $$ 1.05E-01, (19 m) $$ \pm $$ 6.93E-02 mPa s. The corresponding standard deviations for the conductivity values are: (5 m) $$ \pm $$ 1.40, (7.5 m) $$ \pm $$ 1.44, (10 m) $$ \pm $$ 0.92, (12.5 m) $$ \pm $$ 1.55, (15 m) $$ \pm $$ 0.48, (17.5 m) $$ \pm $$ 0.49, (19 m) $$ \pm $$ 0.97 mS cm-1. In (B), the numbers and colors indicate regions of highest (1) to lowest (4) charge storage according to (A). In (C), the upper and bottom dotted lines are theoretical curves corresponding to solutions with 0$$ \% $$ and 90$$ \% $$ ion pairing, respectively[16].
